Condenser



June 7, 1932. L BUTTQLPH 1,861,622

CONDENSER Filed Dec. 51, 1926 ENVENYGR WES AWQRNEY Patented June 7, 1932 LEBOYJ. BUTTOLIH, OF GBAJN'IWOQD WAR SE2, ASEIGNOR TU GEM ELFA HEHG VAEQB LAMP GOMIPAJNY HQBQKEN, NEW JERSEY, A COEEORATIQN OI! JERSEY Application filed December e1 lose. semi no. issiei.

The present invention relates to variable condensers and indnctences for use indie end other circuits and nercicnlerl y lo eels of two or more condensers or inducmnces hsv ing tandem mechanical conneciion for simultaneous adjustment and control and having on snxilinry condenser or inductance for one on more-of the tandem condensers or stances for accurately correcting the choreote'ristic Value of one of such devices so each of the units in e given tandem will have fshe some eccnrelely adjusted velne with respect lo the other or others for any given edjusced position of the tandem group.

Various checks and advantages of invention will no obvious from she folio ling pfifllClllfil description of one form of apparecns embodying the invenlion or from inspeciion of the accompanying drawing; the invention also consists in certain new useful features of construction and coin lions of parts hereinafter set forth claimed.

In the eccompenying drewing there is shown Eorpurpcses of illustration one "form of apparatus embodying the invention, in which Fig. 1 is an elevation View showing somewhat diagrammatically an emhodinnenl of the invention,

Fig. 2 is a plan viewof e pert oi the opposctus illustrated in El 1, and

Fig. 3 is s View ta en along the line of Fig. 2 and loofing in the direciion of iZllG arrows In the use of variable electrical condensens in tandem in radio and oiher circuits e single control for a plurality of condensers there is generally a 'dlfierence in capacity helween the difierent condensers for any given setting. This difference is usually compenseted by connecting a small auxiliary con denser in multiple with thai condenser has ing the lower capacity value hut an adjustwent made in this way is accurate or exact "for only onc 'position of the main compensated condenser and for other positions can at best be only an approximate correction. Accordin to thisinvention there is connec'bed W in multip e wihh the main compensahed connligned therewith is the shell l4; of

densei e oll vorinlole condenser wh h is mechanically connected with the Von lion control of sold main compensated cond ec in. such no: es said insin condenser is ndjnslohly varied the said srljns'cvariable condenser 16 supported by said i and e pcnel 18 through "which said sh Back of seid panel 18 is panel 20 which supports the cnniliai y' ehle condenser 22 Whose controlling shsic 2c; is snpporlzed by seid panel 29.

Ede-id sheila 241-, Whose nnis, parallel lo oi said shaft 14: hut a, little out on me iheiewiih, is mechanically connected "co sold shcfl; is by on adjuslehle creel; ineniher 216 which extends radially from shell end which has formed therein the radially tending slot 28 into which exoends pin 30 which projects from n sleeve 32 shdehly mounted on rod 34 extending redicll r seid shaft 24 end cdjnstehly fixahle i'znereon hy means oi the thumb screw 36.

Said condenser 4 has connecting Wire 38 from its scscionery plates and the conneciin Wire 40 "from the rotecehle lei/es thereon The rotor pieces of said con ensers 16 end 952 connected together by the wires 42, M and the slasher plates-oi": these two condensers ere connect-ed together by means of the Wire 46. e Tooth sides oi said condensers 4 and 16 ere shown as loeing insulated from each other n is to be understood thai either side of both of these can he unded or connected to a common .lesd without departing from the resent invention.

As indicated in dotted lines in Fig. l in some embodiments oi the invenlsion said elicit 24 is mounted to said nnel 20 through she section. which is sliddlile in a slot 52 in panel ioc 20 and held in place by a ton e 54 on each side of slide 50 and a slot 56 in t e corresponding slot 52. A screw 60 mounted to section 50 and having a pair of adjusting nuts 62, 62 serves with the member 64 positioned between said nuts 62, 62 to adjust the position of said shaft 24 with respect to said shaft 14. By adjusting the position of said pin 30 along said slot 28 or of said shaft 24 by means of said nuts 62,62 the amount of increment or decrement in the value of the capacity of the arallel connected condensers 16 and 22 can e varied to'suit the average difference in value between the said condensers 4 and 16 for different rotational positions of the rotors thereof, and a compensation for this difference can be obtained which is quite accurate for any position of rotation.

It is to be understood that while variable condensers mechanically mounted in tandem have been demribed for the purpose of illustrating the invention other variable electric circuit regulatin devices can be mounted in the same way. uch other devices or combinations are, for example, tandem sets of variable inductances or loose couplers or condensers and loose couplers mounted in tandem and requiring correction of one of them to compensate for increments or decrements of relative values resulting from variation of both together and for compensatin for increments or decrements in rates of c ange of relative values.

While I have shown and described and have pointed out in the annexed claims certain novel features of the invention, it will be understood. that various omissions, substitutions and changes in the forms and details of the device illustrated and in its operation may be made by those skilled in the art without departing from the spirit of the invention.

I claim:

1. In combination two variable condensers mounted on a common adjusting shaft and an auxiliary variable condenser mounted with its controlling shaft parallel to and off the center of said first shaft and mechanically connected therewith through a slide crank connection.

2. In combination two variable condensers mounted on a common adjusting shaft and an auxiliary variable condenser mounted with its controlling shaft parallel to and off the center of said first shaft and mechanically connected for rotation therewith through an eccentric connection, whereby the eccentricity of said shafts causes said auxiliary condenser to move at a varying rate with respect to said first mentioned condensers.

'3. In combination two variable condensers having their rotor plates mounted on a common shaft, an auxiliary condenser for at least one of said condensers, said auxiliary for at least one of said condensers, and an.

eccentric slide crank mechanically connecting said auxiliary variable condenser with its associated condenser for rotation therewith.

5. In combination two variable condensers mounted on a common adjusting shaft and an auxiliary variable condenser mounted with its controlling shaft parallel to and off the center of said first shaft and mechanically connected therewith through an adjustable slide crank connection.

6. In combination two variable condensers mounted on a common adjusting shaft and an auxiliary variable condenser mounted with its controlling shaft parallel to and off the center of said first shaft and means for changing the distance of the shaft of said auxiliary condenser from that of its corresponding main condenser.

7. In combination two variable condensers mounted on a common adjusting shaft and an auxiliary variable condenser mounted with its controlling shaft parallel to and off the center of said first shaft and mechanically connected therewith through a crank connection'and means for changing the distance of the shaft of said auxiliary condenser from that of its corresponding main condenser.

8. In combination two variable condensers mounted on a common adjusting shaft and an auxiliary variable condenser mounted with its controlling shaft parallel to and off the center of said first shaft and mechanically connected for rotation therewith through an eccentric connection and means for varying the eccentricity of these two condensers.

9. In combination, a plurality of variable controlling elements for electric circuits, each of said elements comprising a stator and a rotor, the axes of two of said rotors being out of alignment but parallel, and a connection son and State of New Jersey this 29th day of December, A. D. 1926.

LEROY J. BUTTOLPH. 

